Planning Permission Ireland

BER Assessment in Ireland — When to Get One, What It Costs, and What the Assessor Measures

Last updated 30/6/2026 · Reviewed 30/6/2026
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BER assessment in Ireland: €200–€400. Done at completion, after BCAR sign-off. Required for occupancy and for SEAI grants. The assessor measures: floor area, U-values (walls, roof, floor, windows), airtightness (blower door test), and the heating system. Inputs go into the DEAP (Dwelling Energy Assessment Procedure) calculation. Output: a BER rating A1 to G, with a certificate valid for 10 years. The assessor is on the SEAI register of BER assessors. Book the assessment 4–6 weeks before completion. The post-completion BER must match the design target (or better) for SEAI grants.

TL;DR

  • BER assessment in Ireland: €200–€400. Done at completion, after BCAR sign-off. Required for occupancy and for SEAI grants.

  • The assessor measures: floor area, U-values (walls, roof, floor, windows), airtightness (blower door test), and the heating system.

  • Inputs go into the DEAP (Dwelling Energy Assessment Procedure) calculation. Output: a BER rating A1 to G, with a certificate valid for 10 years.

When this matters most

You're at the end of the build and need to book the BER assessment.

When this doesn't apply

The BER certificate is issued.

Frequently asked questions

How much does a BER assessment cost in Ireland?

€200–€400. Done at completion, after BCAR sign-off. Required for occupancy and for SEAI grants. The assessor is on the SEAI register.

When is the BER assessment done?

At completion, after BCAR sign-off. Book 4–6 weeks before completion. The post-completion BER must match the design target for SEAI grants.

What does the BER assessor measure?

Floor area, U-values (walls, roof, floor, windows), airtightness (blower door test), heating system. Inputs go into the DEAP calculation. Output: A1 to G rating.

Sources

SEAI, BER Assessors. https://www.seai.ie/

Frequently asked questions

How much does a BER assessment cost in Ireland?

€200–€400. Done at completion, after BCAR sign-off. Required for occupancy and for SEAI grants. The assessor is on the SEAI register.

When is the BER assessment done?

At completion, after BCAR sign-off. Book 4–6 weeks before completion. The post-completion BER must match the design target for SEAI grants.

What does the BER assessor measure?

Floor area, U-values (walls, roof, floor, windows), airtightness (blower door test), heating system. Inputs go into the DEAP calculation. Output: A1 to G rating.

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